/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
 */
package org.apache.xmlrpc.common;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * Implementation of {@link ServerStreamConnection} for use by the
 * {@link org.apache.xmlrpc.client.XmlRpcLocalStreamTransport}.
 */
public class LocalStreamConnection {
	private class LocalServerStreamConnection implements ServerStreamConnection {
		public InputStream newInputStream() throws IOException {
			return request;
		}

		public OutputStream newOutputStream() throws IOException {
			return response;
		}

		public void close() throws IOException {
			if (response != null) {
				response.close();
			}
		}
	}

	private final InputStream request;
	private final XmlRpcStreamRequestConfig config;
	private final ByteArrayOutputStream response = new ByteArrayOutputStream();
	private final ServerStreamConnection serverStreamConnection;

	/**
	 * Creates a new instance with the given request stream.
	 */
	public LocalStreamConnection(XmlRpcStreamRequestConfig pConfig,
			InputStream pRequest) {
		config = pConfig;
		request = pRequest;
		serverStreamConnection = new LocalServerStreamConnection();
	}

	/**
	 * Returns the request stream.
	 */
	public InputStream getRequest() {
		return request;
	}

	/**
	 * Returns the request configuration.
	 */
	public XmlRpcStreamRequestConfig getConfig() {
		return config;
	}

	/**
	 * Returns an output stream, to which the response may be written.
	 */
	public ByteArrayOutputStream getResponse() {
		return response;
	}

	/**
	 * Returns the servers connection.
	 */
	public ServerStreamConnection getServerStreamConnection() {
		return serverStreamConnection;
	}
}
